/**
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* @license
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* Copyright 2017 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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/// <amd-module name="@tensorflow/tfjs-backend-webgl/dist/gpgpu_math" />
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import { Tensor, TypedArray } from '@tensorflow/tfjs-core';
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import { GPGPUContext, GPGPUContextProgram } from './gpgpu_context';
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import { ShapeInfo, UniformType } from './shader_compiler';
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import { PackingScheme, TextureData, TextureUsage } from './tex_util';
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export interface GPGPUProgram {
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variableNames: string[];
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outputShape: number[];
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userCode: string;
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enableShapeUniforms?: boolean;
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/** If true, this program expects packed input textures. Defaults to false. */
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packedInputs?: boolean;
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/** If true, this program produces a packed texture. Defaults to false. */
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packedOutput?: boolean;
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/**
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* Affects what type of texture we allocate for the output. Defaults to
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* `TextureUsage.RENDER`.
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*/
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outTexUsage?: TextureUsage;
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/**
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* The type of scheme to use when packing texels for the output values.
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* See `PackingScheme` for details. Defaults to `PackingScheme.SHARED_BATCH`.
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*/
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outPackingScheme?: PackingScheme;
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customUniforms?: Array<{
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name: string;
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arrayIndex?: number;
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type: UniformType;
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}>;
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}
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export interface GPGPUBinary extends GPGPUBinaryLocations {
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webGLProgram: GPGPUContextProgram;
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program: GPGPUProgram;
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source: string;
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fragmentShader: WebGLShader;
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inShapeInfos: ShapeInfo[];
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outShapeInfo: ShapeInfo;
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}
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export interface GPGPUBinaryLocations {
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customUniformLocations?: WebGLUniformLocation[];
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infLoc: WebGLUniformLocation;
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nanLoc: WebGLUniformLocation;
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outShapeLocation?: WebGLUniformLocation;
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outShapeStridesLocation?: WebGLUniformLocation;
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outTexShapeLocation?: WebGLUniformLocation;
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variablesLocations?: GPGPUVariableLocations[];
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}
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export interface GPGPUVariableLocations {
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name: string;
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uniform: WebGLUniformLocation;
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offset: WebGLUniformLocation;
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shape?: WebGLUniformLocation;
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texShape?: WebGLUniformLocation;
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}
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export interface TensorData {
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shape: number[];
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texData: TextureData;
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isUniform: boolean;
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uniformValues?: TypedArray;
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}
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export declare function compileProgram<T extends Tensor, K extends Tensor>(gpgpu: GPGPUContext, program: GPGPUProgram, inputs: TensorData[], output: TensorData): GPGPUBinary;
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export declare function getUniformLocations(gpgpu: GPGPUContext, program: GPGPUProgram, webGLProgram: WebGLProgram): GPGPUBinaryLocations;
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export declare function runProgram<T extends Tensor, K extends Tensor>(gpgpu: GPGPUContext, binary: GPGPUBinary, inputs: TensorData[], output: TensorData, customUniformValues?: number[][]): void;
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export declare function makeShaderKey(program: GPGPUProgram, inputs: TensorData[], output: TensorData): string;
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export declare function useShapeUniforms(rank: number): boolean;
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